Short Kent - Design and Development

Design and Development

The Short Kent Flying boat was essentially an enlarged, four-engined version of the Calcutta, with the same passenger carrying capacity but with an increased payload for mail. It was powered by four Bristol Jupiter XFBM radial engines mounted on vertical struts between the upper and lower planes.

The wings were constructed using corrugated duralumin box spars, tubular rib assemblies, with a fabric covering and Frise ailerons on all four wings. Duralumin walkways were provided to allow ready access to the engines for maintenance purposes. The tail unit comprised a braced monoplane tailpane with a single fin; the rudder was fitted with a Flettner trimming aerofoil on the Short Scylla which had the same aerostructure as the Kent.

The anodised duralumin fuselage was mounted below the lower wing, with the planing bottom of the hull made of stainless steel (as on the Singapore II) with a transverse main step. The use of stainless steel reduced the frequency of land inspections of the hull. The bimetallic corrosion problems experienced on the Singapore II hull had been solved; Short Brothers became the first company to master the technique of building seaplane floats and flying-boat hulls in this combination of metals.

A quick-release hook (controlled by the pilots) was provided, which enabled the captain to start, warm up and (when required) run all four engines up to full power for take-off while the aircraft was still attached to the mooring buoy.

Maximum comfort was required for passengers and crew: the Kent's passenger cabin was 8 ft 6 in (2.59 m) wide and 14 ft (4.27 m) long. The seating was arranged in four rows of facing pairs, with a centre aisle, Pullman style. The steward's pantry, situated on the port side aft of the passenger cabin, was equipped with twin-burner oil stoves on which stewards (and the valets of valued passengers) could cook meals in flight. The toilet and washroom were opposite the pantry; the mail and freight compartment was further aft.

Special attention was paid to sound levels in the passenger cabin and crew's stations; accordingly the engines were fitted with exhaust collector rings and long tail pipes, to reduce exhaust noise inside the hull.

The cockpit, for two pilots, was fully enclosed with a separate Radio Officer's station directly aft of the cockpit.

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